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Pregunta 84

A learner insists that no noble gas can form a chemical compound. Which observation directly disproves that absolute claim?

  1. Xenon fluorides can be prepared under suitable conditions.Respuesta correcta
  2. Argon can be mixed physically with air.
  3. Helium atoms can become electrically excited.
  4. Neon can be cooled without forming a compound.

Explicación

Xenon forms xenon fluorides when suitable reaction conditions are provided, so at least one noble gas demonstrably forms compounds. Merely citing a mixture or an excited atom would not establish that chemical bonds have formed.

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Pregunta 84: A learner insists that no noble gas can form a chemical… · The Periodic Table and Elements · Questena